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499387480 = 23561204667
BaseRepresentation
bin11101110001000…
…000110001011000
31021210200111211121
4131301000301120
52010320344410
6121315335024
715242503114
oct3561006130
91253614747
10499387480
11236989229
1211b2b1474
137c5cc367
144a476744
152dc969da
hex1dc40c58

499387480 has 32 divisors (see below), whose sum is σ = 1142047440. Its totient is φ = 196479360.

The previous prime is 499387459. The next prime is 499387481. The reversal of 499387480 is 84783994.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499387481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99894 + ... + 104773.

Almost surely, 2499387480 is an apocalyptic number.

499387480 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

499387480 is an abundant number, since it is smaller than the sum of its proper divisors (642659960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

499387480 is a wasteful number, since it uses less digits than its factorization.

499387480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204739 (or 204735 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 52.

The square root of 499387480 is about 22346.9792142025. The cubic root of 499387480 is about 793.3762885827.

The spelling of 499387480 in words is "four hundred ninety-nine million, three hundred eighty-seven thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 61 122 244 305 488 610 1220 2440 204667 409334 818668 1023335 1637336 2046670 4093340 8186680 12484687 24969374 49938748 62423435 99877496 124846870 249693740 499387480